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OpenStudy (anonymous):
if x is a positive acute angle and cos x = radical 3/4, what is the exact value of sin x?
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OpenStudy (anonymous):
|dw:1352794320204:dw|
OpenStudy (anonymous):
Mk so cos is adjacent over hypotenuse, |dw:1352794400088:dw|, now you just have to use Pythagorean theorem to solve for the last side. Sin is opposite over hypotenuse, so you're going to take the value you found from Pythagorean theorem and put that over 4 (the hypotenuse value)
OpenStudy (anonymous):
|dw:1352794508956:dw|
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